Jack Turner is the president of Exum Mountain Guides and School of American Mountaineering in Grand Teton National Park. He has led treks in India, Pakistan, Nepal, China, Tibet, Bhutan, and Peru. His first book, The Abstract Wild, was a collection of environmental essays; it was followed by a memoir, Teewinot: A Year in the Teton Range. He is a visiting scholar at the University of Utah and has been honored with a 2007 Whiting Foundation Writer’s Award. He lives in Grand Teton National Park with his wife, Dana, and their dog, Rio.